John Taylor
Confirmed: James’s identical twin. John assumes James’s identity after the disappearance in order to obtain information.
James file · spoiler controlled
Relationships are facts. Motives are not.
This register names only relationships established by the programme’s premise and existing Sources. It records where the current verified file supports no conclusion.
Reviewed 17 September 2026 · Sources & corrections
Confirmed relationships
People the current record can place
A relationship does not prove knowledge of James’s private investigation.
Lucy Betts-Taylor
Confirmed: James’s wife and an active investigator into his disappearance.
Henry Betts-Taylor
Confirmed: James and Lucy’s son. This family relationship does not establish what Henry knows about the investigation.
Cambridge police colleagues
Confirmed as a group: James is a DCI who leads a major-investigations team. Individual knowledge and private allegiance require scene-level evidence.
Possible associates
No unnamed person is promoted to the indexes
The notebook and cipher indicate a structured trail, but they do not by themselves identify an author, sender, intended recipient, collaborator or adversary. The current verified record therefore names no additional associate.
Admission test
What would add a person
A scene, transmitted credit, official synopsis or authoritative production source must establish contact with James. A viewer resemblance, unexplained object or absence from a scene is insufficient.
Hypothesis A
Voluntary disappearance
Current findingNo verified item proves that James chose to disappear freely.The existence of a notebook or cipher may indicate deliberate information handling, but it does not establish voluntary departure, duration, destination or intent.
- Confirmed: James is missing.
- Confirmed: material associated with him forms a structured trail.
- Inference only: deliberate preparation is possible.
- Missing test: a verified message, witnessed choice or other direct evidence of freely chosen departure.
Hypothesis B
Coercion or danger
Current findingNo verified item proves abduction, coercion or present danger.A disappearance can justify concern without establishing its cause. The structured trail is compatible with several explanations and is not promoted to proof of threat.
- Confirmed: the family cannot account for James’s whereabouts.
- Neutral: missing contact is compatible with voluntary and involuntary explanations.
- Not confirmed: a threat, captor, demand, injury or witnessed use of force.
- Missing test: corroborated evidence tying another person or event to loss of freedom or safety.
Evidence discipline
What remains genuinely neutral
Absence
Absence establishes that James is not where expected; it does not explain why.
Notebook and cipher
They establish a traceable object trail. Ownership, authorship, recipient and purpose remain separate questions.
John’s investigation
John’s decision to investigate records concern and uncertainty, not proof of either disappearance hypothesis.
Source basis: the existing James Sources, chronology and linked episode records. This page adds classification, not new plot claims.